package models

/*
	奖池

	id   1  奖池金额
	id > 1  人为操作奖池金额记录
*/

import (
	"time"

	"errors"
	"reflect"
	"strings"

	"github.com/astaxie/beego/orm"
)

type PrizePool struct {
	Id         int `orm:"auto"`
	Coin       float64
	CreateTime time.Time `orm:"type(timestamp)"`
	UpdateTime time.Time `orm:"type(timestamp);null;auto_now"`
	Note       string    `orm:"type(text);null"`
}

func init() {
	orm.RegisterModel(new(PrizePool))
}

func (this *PrizePool) TableName() string {
	return "prize_pool"
}

func (this *PrizePool) Read(cols ...string) (err error) {
	o := orm.NewOrm()
	if err = o.Read(this, cols...); err == nil {
		return nil
	}
	return err
}

func (this *PrizePool) Insert() (int64, error) {
	o := orm.NewOrm()
	return o.Insert(this)
}

func (this *PrizePool) Update(cols ...string) (int64, error) {
	o := orm.NewOrm()
	return o.Update(this, cols...)
}

func (this *PrizePool) Delete() (int64, error) {
	o := orm.NewOrm()
	return o.Delete(this)
}

// GetAllParameter retrieves all PrizePool matches certain condition. Returns empty list if
// no records exist
func GetAllPrizePool(query map[string]string, fields []string, sortby []string, order []string,
	offset int64, limit int64) (ml []interface{}, err error) {
	o := orm.NewOrm()
	qs := o.QueryTable(new(PrizePool))
	// query k=v
	for k, v := range query {
		// rewrite dot-notation to Object__Attribute
		k = strings.Replace(k, ".", "__", -1)
		qs = qs.Filter(k, v)
	}
	// order by:
	var sortFields []string
	if len(sortby) != 0 {
		if len(sortby) == len(order) {
			// 1) for each sort field, there is an associated order
			for i, v := range sortby {
				orderby := ""
				if order[i] == "desc" {
					orderby = "-" + v
				} else if order[i] == "asc" {
					orderby = v
				} else {
					return nil, errors.New("Error: Invalid order. Must be either [asc|desc]")
				}
				sortFields = append(sortFields, orderby)
			}
			qs = qs.OrderBy(sortFields...)
		} else if len(sortby) != len(order) && len(order) == 1 {
			// 2) there is exactly one order, all the sorted fields will be sorted by this order
			for _, v := range sortby {
				orderby := ""
				if order[0] == "desc" {
					orderby = "-" + v
				} else if order[0] == "asc" {
					orderby = v
				} else {
					return nil, errors.New("Error: Invalid order. Must be either [asc|desc]")
				}
				sortFields = append(sortFields, orderby)
			}
		} else if len(sortby) != len(order) && len(order) != 1 {
			return nil, errors.New("Error: 'sortby', 'order' sizes mismatch or 'order' size is not 1")
		}
	} else {
		if len(order) != 0 {
			return nil, errors.New("Error: unused 'order' fields")
		}
	}

	var l []PrizePool
	qs = qs.OrderBy(sortFields...)
	if _, err = qs.Limit(limit, offset).All(&l, fields...); err == nil {
		if len(fields) == 0 {
			for _, v := range l {
				ml = append(ml, v)
			}
		} else {
			// trim unused fields
			for _, v := range l {
				m := make(map[string]interface{})
				val := reflect.ValueOf(v)
				for _, fname := range fields {
					m[fname] = val.FieldByName(fname).Interface()
				}
				ml = append(ml, m)
			}
		}
		return ml, nil
	}
	return nil, err
}
